Electronic vaporization device

ABSTRACT

An electronic vaporization device includes: a suction nozzle portion; an airflow sensor; and a start channel, one end of the start channel being in communication with the suction nozzle portion and an other end of the start channel being in communication with the airflow sensor. A liquid absorbing portion is arranged at a section of the start channel close to the airflow sensor, the liquid absorbing portion absorbing liquid flowing through the start channel through a capillary force.

CROSS-REFERENCE TO PRIOR APPLICATION

This application is a continuation of International Patent Application No. PCT/CN2020/111829, filed on Aug. 27, 2020. The entire disclosure is hereby incorporated by reference herein.

FIELD

This application relates to the field of vaporizer technologies, and specifically, to an electronic vaporization device.

BACKGROUND

An electronic vaporization device includes a vaporization component and a power supply component, and annular silica gel is arranged between the vaporization component and the power supply component for sealing. During use of the electronic vaporization device, condensate is generated; and liquid leakage may occur due to improper operations or other reasons. Paths of the liquid leakage include a start channel and a position sealed by the annular silica gel. When sealing of the annular silica gel fails, liquid may leak from a vaporizer to the inside of a battery, causing failures of a microphone and a circuit board. Generally, the electronic vaporization device is started with the microphone, and the failure of the microphone affects use of the electronic vaporization device.

SUMMARY

In an embodiment, the present invention provides an electronic vaporization device, comprising: a suction nozzle portion; an airflow sensor; and a start channel, one end of the start channel being in communication with the suction nozzle portion and an other end of the start channel being in communication with the airflow sensor, wherein a liquid absorbing portion is arranged at a section of the start channel close to the airflow sensor, the liquid absorbing portion being configured to absorb liquid flowing through the start channel through a capillary force.

BRIEF DESCRIPTION OF THE DRAWINGS

Subject matter of the present disclosure will be described in even greater detail below based on the exemplary figures. All features described and/or illustrated herein can be used alone or combined in different combinations. The features and advantages of various embodiments will become apparent by reading the following detailed description with reference to the attached drawings, which illustrate the following:

FIG. 1 a is a schematic structural diagram of an electronic vaporization device according to this application;

FIG. 1B is a schematic block diagram of an electronic vaporization device according to this application;

FIG. 2 is a schematic structural diagram of a first embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 3 is a schematic structural diagram of a second embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 4 is a schematic structural diagram of a third embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 5 is an experimental phenomenon diagram of the third embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 6 is a schematic structural diagram of a fourth embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 7 is a schematic structural diagram of another implementation of the fourth embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 8 is an experimental phenomenon diagram of the another implementation of the fourth embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 9 is a schematic structural diagram of a fifth embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 10 is a schematic partial view of another implementation of a plurality of first fins and a plurality of second fins in the fifth embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 11 is an experimental phenomenon diagram of the start channel of the electronic vaporization device provided in FIG. 9 ;

FIG. 12 is a schematic structural diagram of an implementation of the fifth embodiment of a start channel of an electronic vaporization device according to this application;

FIG. 13 is an experimental phenomenon diagram of the start channel of the electronic vaporization device provided in FIG. 12 ;

FIG. 14 is a schematic structural diagram of another implementation of the fifth embodiment of a start channel of an electronic vaporization device according to this application; and

FIG. 15 is an experimental phenomenon diagram of the start channel of the electronic vaporization device provided in FIG. 14 .

DETAILED DESCRIPTION

In an embodiment, the present invention provides an electronic vaporization device, to resolve the problems that leaked liquid causes failure of an airflow sensor and the leaked liquid stays in a start channel in the related art.

In an embodiment, the present invention provides an electronic vaporization device, including a suction nozzle portion, an airflow sensor, and a start channel, where one end of the start channel is in communication with the suction nozzle portion and the other end of the start channel is in communication with the airflow sensor, a liquid absorbing portion is arranged at a section of the start channel close to the airflow sensor, and the liquid absorbing portion is configured to absorb liquid flowing through the start channel through a capillary force.

The liquid absorbing portion includes a capillary liquid guiding structure, the capillary liquid guiding structure includes at least one capillary groove, and the capillary groove is configured to absorb the liquid flowing through the start channel.

A plurality of capillary grooves are provided, and the plurality of capillary grooves are provided side by side.

A capillary force of the capillary groove away from the airflow sensor is stronger than a capillary force of the capillary groove close to the airflow sensor.

The liquid absorbing portion includes a capillary liquid guiding structure and a porous liquid storage element, and the capillary liquid guiding structure is configured to absorb the liquid flowing through the start channel to the porous liquid storage element.

The capillary liquid guiding structure is a structure formed by the plurality of capillary grooves provided side by side.

The porous liquid storage element is a liquid storage cotton or porous ceramic.

A capillary force of the capillary groove away from the airflow sensor is stronger than a capillary force of the capillary groove close to the airflow sensor.

The capillary liquid guiding structure includes a plurality of first fins, and the plurality of first fins are arranged in parallel at intervals to form at least one first capillary groove.

The start channel includes a first airway section and a second airway section; one end of the first airway section is in communication with the airflow sensor, the other end of the first airway section is in communication with one end of the second airway section, and the other end of the second airway section is in communication with the suction nozzle portion; and distances from ends of the plurality of first fins close to the first airway section to a central axis of the first airway section are equal to each other and range from 0.9 mm to 1.5 mm.

A region corresponding to the first airway section is a first region, and a region corresponding to the second airway section is a second region; and a distance between one end of the first fin arranged in the first region close to the first airway section and a central axis of the first airway section is a first distance, a distance between the one end of the first fin arranged in the second region close to the first airway section and the central axis of the first airway section is a second distance, and the first distance is greater than the second distance.

A plurality of second distances of the plurality of first fins arranged in the second region are equal to each other and range from 0.3 mm to 0.5 mm; and a plurality of first distances of the plurality of first fins arranged in the first region are equal to each other and range from 0.9 mm to 1.5 mm.

A plurality of second distances of the plurality of first fins arranged in the second region decrease in an equidifferent manner in a direction from a position away from the first region to a position close to the first region, and the equal difference ranges from 0.3 mm to 0.5 mm; and a plurality of first distances of the plurality of first fins arranged in the first region are equal to each other and range from 0.9 mm to 1.5 mm.

The capillary liquid guiding structure further includes a plurality of second fins, and the plurality of second fins are arranged on one side of the plurality of first fins away from the first airway section; the plurality of second fins are arranged in parallel at intervals to form at least one second capillary groove; the first capillary groove is in communication with the second capillary groove; and a third capillary groove is formed between the plurality of first fins and the plurality of second fins.

An included angle between the extending directions of the plurality of first fins and the plurality of second fins and the extending direction of the first airway section ranges from 60 degrees to 90 degrees; and the at least one first capillary groove and the at least one second capillary groove are provided in a one-to-one correspondence or in a staggered manner.

The width of the first fin ranges from 0.6 mm to 1.0 mm, and the width of the first capillary groove ranges from 0.3 mm to 0.5 mm; the width of the second fin ranges from 0.6 mm to 1.0 mm, and the width of the second capillary groove ranges from 0.3 mm to 0.5 mm; and the width of the third capillary groove ranges from 0.3 mm to 0.5 mm.

A material of the first fin and the second fin is metal or porous ceramic.

The electronic vaporization device further includes an air inlet and a vaporization channel, where the vaporization channel is in communication with the air inlet and the suction nozzle portion, the vaporization channel is provided with a vaporization core, and the vaporization channel is in fluid communication with the start channel.

The electronic vaporization device includes a liquid storage tank, the vaporization channel includes a vaporization cavity, the vaporization core is arranged in the vaporization cavity, the vaporization core is generally configured to vaporize liquid from the liquid storage tank, and the liquid absorbing portion is arranged between the vaporization core and the airflow sensor.

Beneficial effects of this application are as follows: Compared with the related art, in this application, the liquid absorbing portion is arranged in the start channel, and the liquid absorbing portion absorbs the liquid flowing through the start channel through the capillary force, thereby preventing the leaked liquid from soaking the airflow sensor, preventing failure of the airflow sensor, and ensuring smoothness of the start channel.

This application is further described in detail below with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 a and FIG. 1B, FIG. 1 a is a schematic structural diagram of an electronic vaporization device according to this application; and FIG. 1B is a schematic block diagram of an electronic vaporization device according to this application.

The electronic vaporization device includes a start channel 1, an airflow sensor 2, and a suction nozzle portion 3. One end of the start channel 1 is in communication with the suction nozzle portion 3 and the other end of the start channel is in communication with the airflow sensor 2, a liquid absorbing portion 21 is arranged at a section of the start channel 1 close to the airflow sensor 2, and the liquid absorbing portion 21 is configured to absorb liquid flowing through the start channel 1 through a capillary force. The start channel 1 is in communication with the suction nozzle portion 3 and the airflow sensor 2 and generates negative pressure during inhalation, and the airflow sensor 2 senses a change of air pressure and starts a heating function, so that the electronic vaporization device starts to work.

The electronic vaporization device further includes a liquid storage tank 4, a vaporization channel 5, an air inlet 6, and a power supply 7. The vaporization channel 5 communicates the air inlet 6 with the suction nozzle portion 3, and the vaporization channel 5 is in communication with the start channel 1. The vaporization channel 5 includes a vaporization cavity 51, a vaporization core 52 is arranged in the vaporization cavity 51, the vaporization core 52 is configured to vaporize liquid from the liquid storage tank 4, and the liquid absorbing portion 21 is arranged between the vaporization core 52 and the airflow sensor 2. The power supply 7 is configured to supply power to the vaporization core 52, so that the vaporization core 52 works to vaporize the liquid.

The vaporization channel 5 includes an air outlet channel 53, where the air outlet channel 53 passes through the liquid storage tank 4, one end of the air outlet channel 53 is in communication with the suction nozzle portion 3, and the other end of the air outlet channel is in communication with the vaporization cavity 51. The air inlet 6 is in communication with the vaporization cavity 51. Negative pressure is generated during inhalation, when external air enters the vaporization cavity 51 from the air inlet 6, the airflow sensor 2 senses the change of the air pressure and starts the heating function, and then the external air carries the liquid vaporized by the vaporization core 52 through the air outlet channel 53 to reach the suction nozzle portion 3 to be inhaled by a user.

A part of the start channel 1 is shared by the vaporization cavity 51 and the air outlet channel 53.

FIG. 2 is a schematic structural diagram of a first embodiment of a start channel 1 of an electronic vaporization device according to this application.

The start channel 1 includes a first airway section 11, a second airway section 12, and a liquid absorbing element accommodating cavity 13; one end of the first airway section 11 is in communication with the airflow sensor 2, the other end of the first airway section 11 is in communication with one end of the second airway section 12, and the other end of the second airway section 12 is in communication with the suction nozzle portion 3; and the extending direction of the first airway section 11 is perpendicular to the extending direction of the second airway section 12. The liquid absorbing element accommodating cavity 13 is in communication with the first airway section 11. In addition, the end of the first airway section 11 in communication with the airflow sensor 2 is also in communication with the outside.

Because the start channel 1 is in fluid communication with the vaporization channel 5, condensate formed by condensed vapor in the vaporization channel 5 enters the start channel 1. When liquid leaks from the electronic vaporization device, the leaked liquid also enters the start channel 1. The leaked liquid and the condensate entering the start channel 1 contaminates the airflow sensor 2, and affects smoothness of the start channel 1.

A through hole 111 is provided on the side wall of the end for being in communication with the outside of the first airway section 11, and is used as an interface to be in communication with the airflow sensor 2. The shape and size of the through hole 111 are not limited, and may be designed according to the size of the airflow sensor 2. A microphone is generally selected as the airflow sensor 2. Other elements may also be selected as the airflow sensor 2, as long as the elements can realize a function of starting the electronic vaporization device, which is not limited in this application.

In the first embodiment, the liquid absorbing element accommodating cavity 13 is provided with the liquid absorbing portion 21 inside, and the liquid absorbing portion 21 includes a porous liquid storage element 211. The porous liquid storage element 211 is arranged in an entire space of the liquid absorbing element accommodating cavity 13. The porous liquid storage element 211 is a liquid storage cotton or porous ceramic. The liquid diffuses in the porous liquid storage element 211 in a direction from a position close to the second airway section 12 to a position away from the second airway section 12. During use, the porous liquid storage element 211 may be replaced after the porous liquid storage element 211 is full of the liquid or a liquid absorbing speed becomes slow, which can prevent liquid from staying in the start channel 1 as much as possible, and prevent the liquid from soaking the airflow sensor 2, thereby improving the performance of the electronic vaporization device.

It may be understood that, the porous liquid storage element 211 may fill part of or the entire liquid absorbing element accommodating cavity 13; and even after the porous liquid storage element 211 fills the entire liquid absorbing element accommodating cavity 13, a part of the first airway section 11 is also provided with the porous liquid storage element 211 inside, so that the porous liquid storage element 211 has a maximum liquid absorption capability. When the liquid absorbing portion 21 includes a material that expands upon liquid absorption, the material fills only a part of the liquid absorbing element accommodating cavity 13.

It may be understood that, the extending direction of the first airway section 11 may also be not perpendicular to the extending direction of the second airway section 12, as long as a certain included angle is formed to meet a requirement. The second airway section 12 is a closed tubular structure. The first airway section 11 is also a tubular structure, but the side wall where the first airway section 11 is connected with the liquid absorbing element accommodating cavity 13 has an opening, so that the liquid absorbing element accommodating cavity 13 is in communication with the first airway section 11.

FIG. 3 is a schematic structural diagram of a second embodiment of a start channel 1 of an electronic vaporization device according to this application.

In the second embodiment, the liquid absorbing portion 21 includes a capillary liquid guiding structure 212. The capillary liquid guiding structure 212 includes a plurality of first fins 2121, and the plurality of first fins 2121 are arranged in parallel at intervals to form a first capillary groove 2122. That is, at least one first capillary groove 2122 is provided, and the at least one first capillary groove 2122 is provided side by side. It may be understood that, the capillary liquid guiding structure 212 includes at least two first fins 2121, that is, at least one first capillary groove 2122 is formed. The first capillary groove 2122 is configured to absorb and store the liquid flowing through the start channel 1, so as to keep the smoothness of the start channel 1 and prevent the liquid from soaking the airflow sensor 2.

The widths of the plurality of first fins 2121 range from 0.6 mm to 1.0 mm, and the width of the first capillary groove 2122 ranges from 0.3 mm to 0.5 mm. An included angle between the extending direction of the plurality of first fins 2121 and the extending direction of the first airway section 11 is greater than 30 degrees, and preferably, ranges from 60 degrees to 90 degrees, so that the liquid may be absorbed by the first capillary groove 2122 smoothly. In this embodiment, the included angle between the extending direction of the plurality of first fins 2121 and the extending direction of the first airway section 11 is 90 degrees.

In this embodiment, distances from the ends of the plurality of first fins 2121 close to the first airway section 11 to a central axis of the first airway section 11 are equal to each other and range from 0.9 mm to 1.5 mm. Distances from the ends of the plurality of first fins 2121 away from the first airway section 11 to the central axis of the first airway section 11 may be equal or may be not equal.

In other implementations, the liquid absorbing element accommodating cavity 13 includes a first region 221 corresponding to the first airway section 11 and a second region 222 corresponding to the second airway section 12. A distance between one end of the first fin 2121 arranged in the first region 221 close to the first airway section 11 and the central axis of the first airway section 11 is a first distance L1, a distance between the one end of the first fin 2121 arranged in the second region 222 close to the first airway section 11 and the central axis of the first airway section 11 is a second distance L2, and the first distance L1 is greater than second distance L2.

Specifically, a plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 may be equal to each other and range from 0.3 mm to 0.5 mm; and a plurality of first distances L1 of the plurality of first fins 2121 arranged in the first region 221 are equal to each other and range from 0.9 mm to 1.5 mm.

In another implementation, the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 may be not equal and decrease in an equidifferent manner in a direction from a position away from the first region 221 to a position close to the first region 221, and the equal difference ranges from 0.3 mm to 0.5 mm; and the plurality of first distances L1 of the plurality of first fins 2121 arranged in the first region 221 are equal to each other and range from 0.9 mm to 1.5 mm.

FIG. 4 is a schematic structural diagram of a third embodiment of a start channel 1 of an electronic vaporization device according to this application.

A start component of the third embodiment in this application is basically the same as the structure of the electronic vaporization device of the second embodiment in this application, where a difference lies in that the liquid absorbing portion 21 includes a porous liquid storage element 211 and a capillary liquid guiding structure 212. The capillary liquid guiding structure 212 includes a plurality of first fins 2121. Specifically, the liquid absorbing element accommodating cavity 13 includes a first space 22 close to the first airway section 11 and a second space 23 away from the first airway section 12. The plurality of first fins 2121 are arranged in the first space 22. The porous liquid storage element 211 is arranged in the second space 23, that is, the plurality of first fins 2121 are arranged between the porous liquid storage element 211 and the first airway section 11. The plurality of first fins 2121 are arranged in parallel at intervals to form a first capillary groove 2122. The widths of the plurality of first fins 2121 range from 0.6 mm to 1.0 mm, and the width of the first capillary groove 2122 ranges from 0.3 mm to 0.5 mm. An included angle between the extending direction of the plurality of first fins 2121 and the extending direction of the first airway section 11 is greater than 30 degrees, and preferably, ranges from 60 degrees to 90 degrees, so that the liquid may flow through the first capillary groove 2122 into the second space 23 smoothly. In this embodiment, the included angle between the extending direction of the plurality of first fins 2121 and the extending direction of the first airway section 11 is 90 degrees.

In this embodiment, distances from the ends of the plurality of first fins 2121 close to the first airway section 11 to a central axis of the first airway section 11 are equal to each other and range from 0.9 mm to 1.5 mm. The distances from the ends of the plurality of first fins 2121 away from the first airway section 11 to the central axis of the first airway section 11 may be equal or may be not equal, as long as the ends of the plurality of first fins 2121 away from the first airway section 11 are in contact with the porous liquid storage element 211.

The first capillary groove 2122 is in communication with the first airway section 11 and the second space 23, so that liquid entering the start channel 1 may flow into the second space 23 through the first capillary groove 2122, and be absorbed by the porous liquid storage element 211 in the second space 23, thereby keeping the smoothness of the start channel 1, and preventing the liquid from soaking the airflow sensor 2. The liquid diffuses in the porous liquid storage element 211 in a direction from a position close to the second airway section 12 to a position away from the second airway section 12.

The plurality of first fins 2121 are arranged in the liquid absorbing element accommodating cavity 13 to guide the liquid flowing into the start channel 1, so that the liquid is absorbed by the porous liquid storage element 211. When an amount of the leaked liquid is small, the liquid flowing into the start channel 1 is guided by the first capillary groove 2122 between the plurality of first fins 2121 to be absorbed by the porous liquid storage element 211, which does not affect the smoothness of the start channel 1. When the amount of the leaked liquid is large, the liquid flowing into the start channel 1 is first guided to the porous liquid storage element 211 by the plurality of first fins 2121, and when the porous liquid storage element 211 does not have the ability to absorb the liquid, a liquid level in the second airway section 12 is further raised, so that the through hole 111 in communication with the airflow sensor 2 is the last region that the liquid contacts, so as to protect the airflow sensor 2 to the greatest extent. During use, the porous liquid storage element 211 may be replaced after the porous liquid storage element 211 is full of the liquid or a liquid absorbing speed becomes slow, which can prevent liquid from staying in the start channel 1 as much as possible, and prevent the liquid from soaking the airflow sensor 2, thereby improving the performance of the electronic vaporization device.

FIG. 5 is an experimental phenomenon diagram of the third embodiment of a start channel 1 of an electronic vaporization device according to this application.

It may be seen from FIG. 5 that by arranging the plurality of first fins 2121 and the porous liquid storage element 211, the liquid can be guided, so that the leaked liquid entering the start channel 1 is absorbed by the porous liquid storage element 211, which protects the airflow sensor 2 to the greatest extent, and prevents the liquid from staying in the start channel 1. However, in the first capillary groove 2122, rising of liquid in a lower part and sinking of liquid in an upper part may form an air column. In an experiment, a sidewall surface of an opening of a test piece is attached to an acrylic plate, which is convenient for observing flowing of the liquid.

FIG. 6 is a schematic structural diagram of a fourth embodiment of a start channel 1 of an electronic vaporization device according to this application.

A start component of the fourth embodiment in this application is basically the same as the structure of the electronic vaporization device of the third embodiment in this application, where a difference lies in a structure of the plurality of first fins 2121. Specifically, in the fourth embodiment, the liquid absorbing portion 21 includes a porous liquid storage element 211 and a plurality of first fins 2121. the liquid absorbing element accommodating cavity 13 includes a first space 22 close to the first airway section 11 and a second space 23 away from the first airway section 12. The plurality of first fins 2121 are arranged in the first space 22. The porous liquid storage element 211 is arranged in the second space 23. The plurality of first fins 2121 are arranged in parallel at intervals to form a first capillary groove 2122. The widths of the plurality of first fins 2121 range from 0.6 mm to 1.0 mm, and the width of the first capillary groove 2122 ranges from 0.3 mm to 0.5 mm.

The first capillary groove 2122 is in communication with the first airway section 11 and the second space 23, so that liquid entering the start channel 1 may flow into the second space 23 through the first capillary groove 2122, and be absorbed by the porous liquid storage element 211 in the second space 23, thereby keeping the smoothness of the start channel 1, and preventing the liquid from soaking the airflow sensor 2.

In this embodiment, the liquid absorbing element accommodating cavity 13 includes a first region 221 corresponding to the first airway section 11 and a second region 222 corresponding to the second airway section 12; and it is defined that a distance between one end of the first fin 2121 arranged in the first region 221 close to the first airway section 11 and the central axis of the first airway section 11 is a first distance L1, and a distance between the one end of the first fin 2121 arranged in the second region 222 close to the first airway section 11 and the central axis of first airway section 11 is a second distance L2, the first distance is L1 greater than the second distance L2. That is, the height of the first fin 2121 arranged in the second region 222 is greater than the height of the first fin 2121 arranged in the first region 221.

In a specific implementation, a plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 are equal to each other and range from 0.3 mm to 0.5 mm; and a plurality of first distances L1 of the plurality of first fins 2121 arranged in the first region 221 are equal to each other and range from 0.9 mm to 1.5 mm. The distances from the ends of the plurality of first fins 2121 away from the first airway section 11 to the central axis of the first airway section 11 may be equal or may be not equal, as long as the ends of the plurality of first fins 2121 away from the first airway section 11 are in contact with the porous liquid storage element 211.

FIG. 7 is a schematic structural diagram of another implementation of the fourth embodiment of a start channel 1 of an electronic vaporization device according to this application.

In another implementation, the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 decrease in an equidifferent manner in a direction from a position away from the first region 221 to a position close to the first region 221, and the equal difference ranges from 0.3 mm to 0.5 mm; and the plurality of first distances L1 of the plurality of first fins 2121 arranged in the first region 221 are equal to each other and range from 0.9 mm to 1.5 mm. The distances from the ends of the plurality of first fins 2121 away from the first airway section 11 to the central axis of the first airway section 11 may be equal or may be not equal, as long as the ends of the plurality of first fins 2121 away from the first airway section 11 are in contact with the porous liquid storage element 211.

FIG. 8 is an experimental phenomenon diagram of the another implementation of the fourth embodiment of a start channel 1 of an electronic vaporization device according to this application.

It may be seen from FIG. 8 , the plurality of second distances L2 of the plurality of first fins 2121 in the second region 222 decrease in an equidifferent manner in a direction from a position away from the first region 221 to a position close to the first region 221, and the porous liquid storage element 211 accounts for ½ of the volume of the liquid absorbing element accommodating cavity 13, which can both promote the liquid flowing and increase a liquid storage capacity, thereby protecting the airflow sensor 2 to the greatest extent and keeping the smoothness of the start channel 1. In an experiment, a sidewall surface of an opening of a test piece is attached to an acrylic plate, which is convenient for observing flowing of the liquid.

An included angle between the extending direction of the plurality of first fins 2121 and the extending direction of the first airway section 11 ranges from 60 degrees to 90 degrees, so that the liquid may flow through the first capillary groove 2122 into the second space 23 smoothly. Preferably, the included angle between the extending direction of the plurality of first fins 2121 and the extending direction of the first airway section 11 is 90 degrees.

The plurality of first fins 2121 are arranged in the liquid absorbing element accommodating cavity 13 to guide the liquid flowing into the start channel 1, so that the liquid is absorbed by the porous liquid storage element 211. The liquid absorbing element accommodating cavity 13 is divided into a first region 221 corresponding to the first airway section 11 and a second region 222 corresponding to the second airway section 12, and the first distance L1 is set to be greater than the second distance L2, so that liquid entering the start channel 1 through an interface of the second airway section 12 in communication with the vaporization channel 5 can enter the first capillary groove 2122 more smoothly. In order to prevent formation of capillary action between the plurality of first fins 2121 in the second region 222 from affecting the liquid entering the first capillary groove 2122 formed by the plurality of first fins 2121 in the first region 221, the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 may decrease in an equidifferent manner in the direction from a position away from the first region 221 to close to a position the first region 221. The liquid diffuses in the porous liquid storage element 211 in the direction from a position away from the first region 221 to a position close to the first region 221.

When an amount of the leaked liquid is small, the liquid flowing into the start channel 1 is guided by the plurality of first fins 2121 to be absorbed by the porous liquid storage element 211, which does not affect the smoothness of the start channel 1. When the amount of the leaked liquid is large, the liquid flowing into the start channel 1 is first guided to the porous liquid storage element 211 by the plurality of first fins 2121, and when the porous liquid storage element 211 does not have the ability to absorb the liquid, a liquid level in the second airway section 12 is further raised, so that the through hole 111 in communication with the airflow sensor 2 is the last region that the liquid contacts, so as to protect the airflow sensor 2 to the greatest extent. During use, the porous liquid storage element 211 may be replaced after the porous liquid storage element 211 is full of the liquid or a liquid absorbing speed becomes slow, which can prevent liquid from staying in the start channel 1 as much as possible, and prevent the liquid from soaking the airflow sensor 2, thereby improving the performance of the electronic vaporization device.

In the third embodiment and the fourth embodiment, the second space 23 accounts for at least ½ of the volume of the liquid absorbing element accommodating cavity 13; and in other implementations, the second space 23 accounts for ⅓ of the volume of the liquid absorbing element accommodating cavity 13. A larger number of liquid absorbing element accommodating cavities 13 arranged in the porous liquid storage element 211 indicates stronger liquid absorbing and storage capabilities. By setting the second space 23 to account for at least ½ of the volume of the liquid absorbing element accommodating cavity 13, both the liquid flowing may be prompted and a liquid storage capacity may be increased, thereby protecting the airflow sensor 2 to the greatest extent and keeping the smoothness of the start channel 1.

FIG. 9 is a schematic structural diagram of a fifth embodiment of a start channel 1 of an electronic vaporization device according to this application.

A start component of the fifth embodiment in this application is basically the same as the structure of the electronic vaporization device of the third embodiment in this application, where a difference lies in that the liquid absorbing portion 21 includes a porous liquid storage element 211, a plurality of first fins 2121, and a plurality of second fins 2123. Specifically, the plurality of first fins 2121 and the plurality of second fins 2123 are arranged in the first space 22. The porous liquid storage element 211 is arranged in the second space 23. The second space 23 accounts for ⅓ of the volume of the liquid absorbing element accommodating cavity 13. The plurality of second fins 2123 are arranged between the plurality of first fins 2121 and the second space 23; the plurality of first fins 2121 are arranged in parallel at intervals to form a first capillary groove 2122; the plurality of second fin 2123 are arranged in parallel at intervals to form a second capillary groove 2124; the first capillary groove 2122 is in communication with the second capillary groove 2124; and a third capillary groove 2125 is formed between the plurality of first fins 2121 and the plurality of second fins 2124. The extending direction of the first capillary groove 2122 is the same as the extending direction of the second capillary groove 2124, and the extending direction of the third capillary groove 2125 is perpendicular to the extending direction of the second capillary groove 2124. The plurality of first fins 2121 and the plurality of second fins 2123 may also be arranged in a one-to-one correspondence or in a staggered manner (referring to FIG. 10 , which is a schematic partial view of another implementation of a plurality of first fins 2121 and a plurality of second fins 2124 in the fifth embodiment of a start channel 1 of an electronic vaporization device according to this application), as long as the first capillary groove 2122 is in communication with the second capillary groove 2124.

The width of the first fin 2121 ranges from 0.6 mm to 1.0 mm, and the width of the first capillary groove 2122 ranges from 0.3 mm to 0.5 mm; the width of the second fin 2123 ranges from 0.6 mm to 1.0 mm, and the width of the second capillary groove 2124 ranges from 0.3 mm to 0.5 mm; and the width of the third capillary groove 2125 ranges from 0.3 mm to 0.5 mm.

The first capillary groove 2122 and the second capillary groove 2124 are in communication with the first airway section 11 and the second space 23, so that the liquid entering the start channel 1 may flow into the second space 23 through the first capillary groove 2122 and the second capillary groove 2124, and be absorbed by the porous liquid storage element 211 in the second space 23, thereby keeping the smoothness of the start channel 1, and preventing the liquid from soaking the airflow sensor 2.

In this embodiment, distances from the ends of the plurality of first fins 2121 close to the first airway section 11 to a central axis of the first airway section 11 are equal to each other and range from 0.9 mm to 1.5 mm. The distances from the ends of the plurality of first fins 2121 away from the first airway section 11 to the central axis of the first airway section 11 are equal. Distances from the ends of the plurality of second fins 2123 close to the first airway section 11 to the central axis of the first airway section 11 are equal. The distances from the ends of the plurality of second fins 2123 away from the first airway section 11 to the central axis of the first airway section 11 may be equal or may be not equal, as long as the ends of the plurality of second fins 2123 away from the first airway section 11 are in contact with the porous liquid storage element 211.

FIG. 11 is an experimental phenomenon diagram of the start channel 1 of the electronic vaporization device provided in FIG. 9 .

In this experiment, the plurality of first fins 2121 and the plurality of second fins 2123 are arranged in a one-to-one correspondence, and the third capillary groove 2125 is formed between the plurality of first fins 2121 and the plurality of second fins 2123, which can prevent an air column from being formed in the first capillary groove 2122 or the second capillary groove 2124. By arranging the plurality of first fins 2121, the plurality of second fins 2123, and the porous liquid storage element 211, the airflow sensor 2 is protected and the smoothness the start channel 1 is kept. In an experiment, a sidewall surface of an opening of a test piece is attached to an acrylic plate, which is convenient for observing flowing of the liquid.

In other implementations, the liquid absorbing element accommodating cavity 13 includes a first region 221 corresponding to the first airway section 11 and a second region 222 corresponding to the second airway section 12. A distance between one end of the first fin 2121 arranged in the first region 221 close to the first airway section 11 and the central axis of the first airway section 11 is a first distance L1, a distance between the one end of the first fin 2121 arranged in the second region 222 close to the first airway section 11 and the central axis of the first airway section 11 is a second distance L2, and the first distance L1 is greater than second distance L2.

FIG. 12 is a schematic structural diagram of an implementation of the fifth embodiment of a start channel 1 of an electronic vaporization device according to this application. In FIG. 12 , the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 may be equal to each other and range from 0.3 mm to 0.5 mm; and the plurality of first distances L1 of the plurality of first fins 2121 arranged in the first region 221 are equal to each other and range from 0.9 mm to 1.5 mm.

FIG. 13 is an experimental phenomenon diagram of the start channel 1 of the electronic vaporization device provided in FIG. 12 .

In this experiment, the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 are equal, and the plurality of first distances L1 of the plurality of first fins 2121 arranged in the first region 221 are equal, so that the plurality of first fins between the first region 221 and the second region 222 form a gradient, and the liquid may enter the first capillary groove 2122 and the second capillary groove 2124 in the first region 221 more smoothly. By arranging the plurality of first fins 2121, the plurality of second fins 2123, and the porous liquid storage element 211, the airflow sensor 2 is protected and the smoothness the start channel 1 is kept. In an experiment, a sidewall surface of an opening of a test piece is attached to an acrylic plate, which is convenient for observing flowing of the liquid.

FIG. 14 is a schematic structural diagram of an implementation of the fifth embodiment of a start channel 1 of an electronic vaporization device according to this application. In FIG. 14 , the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 may be not equal and decrease in an equidifferent manner in a direction from a position away from the first region 221 to a position close to the first region 221, and the equal difference ranges from 0.3 mm to 0.5 mm; and the plurality of first distances L1 of the plurality of first fins 2121 arranged in the first region 221 are equal to each other and range from 0.9 mm to 1.5 mm.

FIG. 15 is an experimental phenomenon diagram of the start channel 1 of the electronic vaporization device provided in FIG. 14 .

In this experiment, the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 decrease in an equidifferent manner in a direction from a position away from the first region 221 to a position close to the first region 221, which can prevent formation of capillary action between the plurality of first fins 2121 in the second region 222 from affecting the liquid entering the first capillary groove 2122 formed by the plurality of first fins 2121 in the first region 221. In an experiment, a sidewall surface of an opening of a test piece is attached to an acrylic plate, which is convenient for observing flowing of the liquid.

In the fifth embodiment, the plurality of first fins 2121 and the plurality of second fins 2123 are arranged in a one-to-one correspondence. An included angle between the extending directions of the plurality of first fins 2121 and the plurality of second fins 2123 and the extending direction of the first airway section 11 ranges from 60 degrees to 90 degrees, so that the liquid may flow through the first capillary groove 2122 and the second capillary groove 2124 into the second space 23 smoothly. Preferably, the included angle between the extending directions of the plurality of first fins 2121 and the plurality of second fins 2123 and the extending direction of the first airway section 11 is 90 degrees.

The plurality of first fins 2121 and the plurality of second fins 2123 are arranged in the liquid absorbing element accommodating cavity 13 to guide the liquid flowing into the start channel 1, so that the liquid is absorbed by the porous liquid storage element 211. The liquid absorbing element accommodating cavity 13 is divided into a first region 221 corresponding to the first airway section 11 and a second region 222 corresponding to the second airway section 12, and the first distance L1 is set to be greater than the second distance L2, so that liquid entering the start channel 1 through an interface of the second airway section 12 in communication with the vaporization channel 5 can enter the first capillary groove 2122 and the second capillary groove 2124 more smoothly. In order to prevent formation of capillary action between the plurality of first fins 2121 in the second region 222 from affecting the liquid entering the first capillary groove 2122 and the second capillary groove 2124 formed by the plurality of first fins 2121 in the first region 221, the plurality of second distances L2 of the plurality of first fins 2121 arranged in the second region 222 may decrease in an equidifferent manner in the direction from a position away from the first region 221 to a position close to the first region 221. The third capillary groove 2125 is formed between the plurality of first fins 2121 and the plurality of second fins 2123, thereby preventing the liquid from forming an air column in the first capillary groove 2122 or the second capillary groove 2124 to affect the liquid absorbed by the porous liquid storage element 211. The liquid diffuses in the porous liquid storage element 211 in the direction from a position away from the first region 221 to a position close to the first region 221.

When an amount of the leaked liquid is small, the liquid flowing into the start channel 1 is guided by the plurality of first fins 2121 and the plurality of second fins 2123 to be absorbed by the porous liquid storage element 211, which does not affect the smoothness of the start channel 1. When the amount of the leaked liquid is large, the liquid flowing into the start channel 1 is first guided to the porous liquid storage element 211 by the plurality of first fins 2121 and the plurality of second fins 2123, and when the porous liquid storage element 211 does not have the ability to absorb the liquid, a liquid level in the second airway section 12 is further raised, so that the through hole 111 in communication with the airflow sensor 2 is the last region that the liquid contacts, so as to protect the airflow sensor 2 to the greatest extent. During use, the porous liquid storage element 211 may be replaced after the porous liquid storage element 211 is full of the liquid or a liquid absorbing speed becomes slow, which can prevent liquid from staying in the start channel 1 as much as possible, and prevent the liquid from soaking the airflow sensor 2, thereby improving the performance of the electronic vaporization device.

In the second embodiment, the third embodiment, the fourth embodiment, and the fifth embodiment, the capillary force of the capillary groove away from the airflow sensor 2 is stronger than the capillary force of the capillary groove close to the airflow sensor 2, so that more leaked liquid may be stored in places away from the airflow sensor 2. The capillary liquid guiding structure 212 may include the plurality of first fins 2121 and/or the plurality of second fins 2123, and a material of the plurality of first fins 2121 and the plurality of second fins 2123 is metal or ceramic. When the capillary liquid guiding structure 212 includes porous ceramic, and the porous liquid storage element 211 is made of the porous ceramic, the capillary force of the capillary liquid guiding structure 212 is different from the capillary force of the porous liquid storage element 211.

In this application, the liquid absorbing portion 21 is arranged in the start channel 1, and the liquid absorbing portion 21 absorbs the liquid flowing through the start channel 1 through the capillary force, thereby preventing the leaked liquid from soaking the airflow sensor 2, preventing failure of the airflow sensor, and ensuring the smoothness of the start channel 1.

The foregoing descriptions are merely some embodiments of this application, and the protection scope of this application is not limited thereto. All equivalent apparatus or process changes made according to the content of this specification and accompanying drawings in this application or by directly or indirectly applying this application in other related technical fields shall fall within the protection scope of this application.

While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative or exemplary and not restrictive. It will be understood that changes and modifications may be made by those of ordinary skill within the scope of the following claims. In particular, the present invention covers further embodiments with any combination of features from different embodiments described above and below. Additionally, statements made herein characterizing the invention refer to an embodiment of the invention and not necessarily all embodiments.

The terms used in the claims should be construed to have the broadest reasonable interpretation consistent with the foregoing description. For example, the use of the article “a” or “the” in introducing an element should not be interpreted as being exclusive of a plurality of elements. Likewise, the recitation of “or” should be interpreted as being inclusive, such that the recitation of “A or B” is not exclusive of “A and B,” unless it is clear from the context or the foregoing description that only one of A and B is intended. Further, the recitation of “at least one of A, B and C” should be interpreted as one or more of a group of elements consisting of A, B and C, and should not be interpreted as requiring at least one of each of the listed elements A, B and C, regardless of whether A, B and C are related as categories or otherwise. Moreover, the recitation of “A, B and/or C” or “at least one of A, B or C” should be interpreted as including any singular entity from the listed elements, e.g., A, any subset from the listed elements, e.g., A and B, or the entire list of elements A, B and C. 

What is claimed is:
 1. An electronic vaporization device, comprising: a suction nozzle portion; an airflow sensor; and a start channel, one end of the start channel being in communication with the suction nozzle portion and an other end of the start channel being in communication with the airflow sensor, wherein a liquid absorbing portion is arranged at a section of the start channel close to the airflow sensor, the liquid absorbing portion being configured to absorb liquid flowing through the start channel through a capillary force.
 2. The electronic vaporization device of claim 1, wherein the liquid absorbing portion comprises a capillary liquid guiding structure, the capillary liquid guiding structure comprising at least one capillary groove, the capillary groove being configured to absorb the liquid flowing through the start channel.
 3. The electronic vaporization device of claim 2, further comprising: a plurality of capillary grooves, wherein the plurality of capillary grooves are provided side by side.
 4. The electronic vaporization device of claim 3, wherein a capillary force of a capillary groove of the plurality of capillary grooves away from the airflow sensor is stronger than a capillary force of a capillary groove of the plurality of capillary grooves close to the airflow sensor.
 5. The electronic vaporization device of claim 1, wherein the liquid absorbing portion comprises a capillary liquid guiding structure and a porous liquid storage element, the capillary liquid guiding structure being configured to absorb the liquid flowing through the start channel to the porous liquid storage element.
 6. The electronic vaporization device of claim 5, wherein the capillary liquid guiding structure comprises a structure formed by a plurality of capillary grooves provided side by side.
 7. The electronic vaporization device of claim 5, wherein the porous liquid storage element comprises a liquid storage cotton or porous ceramic.
 8. The electronic vaporization device of claim 6, wherein a capillary force of the capillary groove of the plurality of capillary grooves away from the airflow sensor is stronger than a capillary force of a capillary groove of the plurality of capillary grooves close to the airflow sensor.
 9. The electronic vaporization device of claim 5, wherein the capillary liquid guiding structure comprises a plurality of first fins, the plurality of first fins being arranged in parallel at intervals to form at least one first capillary groove.
 10. The electronic vaporization device of claim 9, wherein the start channel comprises a first airway section and a second airway section, wherein one end of the first airway section is in communication with the airflow sensor, an other end of the first airway section is in communication with one end of the second airway section, and an other end of the second airway section is in communication with the suction nozzle portion, and wherein distances from ends of the plurality of first fins close to the first airway section to a central axis of the first airway section are equal to each other and range from 0.9 mm to 1.5 mm.
 11. The electronic vaporization device of claim 9, wherein a region corresponding to the first airway section comprises a first region, and a region corresponding to the second airway section comprises a second region, and wherein a distance between one end of a first fin of the plurality of first fins arranged in the first region close to the first airway section and a central axis of the first airway section is a first distance, a distance between the one end of a first fin of the plurality of first fins arranged in the second region close to the first airway section and the central axis of the first airway section is a second distance, and the first distance is greater than the second distance.
 12. The electronic vaporization device of claim 11, wherein a plurality of second distances of the plurality of first fins arranged in the second region are equal to each other and range from 0.3 mm to 0.5 mm, and a plurality of first distances of the plurality of first fins arranged in the first region are equal to each other and range from 0.9 mm to 1.5 mm.
 13. The electronic vaporization device of claim 11, wherein a plurality of second distances of the plurality of first fins arranged in the second region decrease in an equidifferent manner as an equal difference in a direction from a position away from the first region to a position close to the first region, and the equal difference ranges from 0.3 mm to 0.5 mm, and a plurality of first distances of the plurality of first fins arranged in the first region are equal to each other and range from 0.9 mm to 1.5 mm.
 14. The electronic vaporization device of claim 9, wherein the capillary liquid guiding structure further comprises a plurality of second fins, the plurality of second fins being arranged on one side of the plurality of first fins away from the first airway section, wherein the plurality of second fins are arranged in parallel at intervals to form at least one second capillary groove, wherein the first capillary groove is in communication with the second capillary groove, and wherein a third capillary groove is formed between the plurality of first fins and the plurality of second fins.
 15. The electronic vaporization device of claim 14, wherein an included angle between extending directions of the plurality of first fins and the plurality of second fins and an extending direction of the first airway section ranges from 60 degrees to 90 degrees, and wherein the at least one first capillary groove and the at least one second capillary groove are provided in a one-to-one correspondence or in a staggered manner.
 16. The electronic vaporization device of claim 14, wherein a width of the first fin of the plurality of first fins ranges from 0.6 mm to 1.0 mm, and a width of the first capillary groove ranges from 0.3 mm to 0.5 mm, wherein a width of the second fin of the plurality of second fins ranges from 0.6 mm to 1.0 mm, and a width of the second capillary groove ranges from 0.3 mm to 0.5 mm, and wherein a width of the third capillary groove ranges from 0.3 mm to 0.5 mm.
 17. The electronic vaporization device of claim 14, wherein a material of the first fin of the plurality of first fins and the second fin of the plurality of second fins comprises metal or porous ceramic.
 18. The electronic vaporization device of claim 1, further comprising: an air inlet; and a vaporization channel, wherein the vaporization channel is in communication with the air inlet and the suction nozzle portion, the vaporization channel is provided with a vaporization core, and the vaporization channel is in fluid communication with the start channel.
 19. The electronic vaporization device of claim 18, further comprising: a liquid storage tank, wherein the vaporization channel comprises a vaporization cavity, the vaporization core is arranged in the vaporization cavity, the vaporization core is configured to vaporize liquid from the liquid storage tank, and the liquid absorbing portion is arranged between the vaporization core and the airflow sensor. 